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Finding the Fourth Proportional to 562,259.40, 775,917 and 307,609.98

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Solution

The fourth proportional to 562,259.40, 775,917 and 307,609.98 is: 424,501.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,259.40 : 775,917 = 307,609.98 : x
  2. Step 2: Convert to fraction form
    562,259.40/775,917 = 307,609.98/x
  3. Step 3: Cross multiply
    562,259.40x = 775,917 × 307,609.98
  4. Step 4: Simplify right side
    562,259.40x = 238,679,812,851.66
  5. Step 5: Solve for x
    x = 238,679,812,851.66/562,259.40
  6. Step 6: Final answer
    x = 424,501.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.